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Allegan County GIS Data Library (11)
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Big Ten Academic Alliance Geospatial Information Network (5)
CMAP (Chicago Metropolitan Agency for Planning) Data Hub (51)
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Evansville, Vanderburgh County, Indiana Open Data Collection (50)
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GEOhio Spatial Data Discovery Portal (314)
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GIS Data Downloads for Erie County, Ohio (6)
GIS Data Downloads for Fairfield County Auditor's Office, Ohio (31)
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GIS Data Downloads for Queen Anne's County, Maryland (57)
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Geodata Hub of Vilas County, WI (28)
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Harvard (144)
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ICPSR (Inter-university Consortium for Political and Social Research) (1)
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IndianaMap (358)
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IowaDOT Open Data (546)
Kenosha County, WI GIS Open Data Portal (30)
Lake County Illinois Open Data Portal (53)
Land Records Data Portal of Columbia County, WI (61)
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Linn County, Iowa Open Data Portal (39)
Lorain County GIS Data (84)
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Maryland iMap (1,016)
McLean County GIS Consortium Open Data (21)
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Milwaukee County GIS Download (77)
Minnesota Legislative Coordinating Commission - Geospatial Information (LCC-GIS) (27)
Montgomery County Open Data (1,542)
Nebraska Game & Parks Map and Data Portal (1)
NebraskaMap (148)
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Pennsylvania Department of Conservation and Natural Resources Open Data Portal (57)
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PolicyMap (8)
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Russian Military Topographic Map Collection (3)
Rutgers University-New Brunswick (6)
SEMCOG Open Data (36)
Saint Louis County GIS & Mapping (18)
Sarpy County GIS Portal (106)
Sauk County GIS Download (51)
Social Explorer (76)
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Stanford (3)
Stark County GIS Data (108)
State of Michigan Open Data Portal (370)
Summit County GIS Data (31)
The Newberry Library (2)
Three Rivers Park District Open Data (5)
U.S. Fish and Wildlife Service Open Data (1,871)
UM Matthaei Botanical Gardens and Nichols Arboretum (30)
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Wilkin County, Minnesota Open Data (17)
Wisconsin Rapids Online Map Portal (18)
Wood County Open Data Portal (13)
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York County, PA GIS Open Data Portal (50)
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